From: Larry Finger <Larry.Finger@lwfinger.net>
To: "Matthew Wilcox" <mawilcox@microsoft.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"Vlastimil Babka" <vbabka@suse.cz>,
"Christoph Lameter" <cl@linux.com>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"Jérôme Glisse" <jglisse@redhat.com>,
"Lai Jiangshan" <jiangshanlai@gmail.com>,
"Martin Schwidefsky" <schwidefsky@de.ibm.com>,
"Pekka Enberg" <penberg@kernel.org>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Andrey Ryabinin" <aryabinin@virtuozzo.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Paul Mackerras" <paulus@samba.org>,
"Michael Ellerman" <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org, LKML <linux-kernel@vger.kernel.org>
Subject: Regression in 4.18 - 32-bit PowerPC crashes on boot - bisected to commit 1d40a5ea01d5
Date: Thu, 28 Jun 2018 00:05:07 -0500 [thread overview]
Message-ID: <5a98ad6b-e209-a9dc-98db-1745ef5b7f87@lwfinger.net> (raw)
My PowerBook G4 Aluminum crashes on boot with 4.18-rcX kernels with a kernel BUG
at include/linux/page-flags.h:700! The problem was bisected to commit
1d40a5ea01d5 ("mm: mark pages in use for page tables"). It is not possible to
capture the bug with anything other than a camera. The first few lines of the
traceback are as follows:
free_pgd_range+0x19c/0x30c (unreliable)
free_pgtables_0xa0/0xb0
exit_pmap+0xf4/0x16c
mmput+0x64/0xf0
do_exit+0x33c/0x89c
oops_end+0x13c/0x144
_exception_pkey+0x58/0x128
ret_from_except_full+0x0/0x4
--- interrupt: 700 at free_pgd_range+0x19c/0x30c
LR = free_pgd_range+0x19c/0x30c
free_pgtables+0xa/0xb
exit_mnap+0xf4/0x16c
mmput+0x64/0xf0
flush_old_exec+0x490/0x550
I have a PDF of the complete dump, but I hesitate to send this to the entire group.
Thanks,
Larry
reply other threads:[~2018-06-28 5:05 UTC|newest]
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